Kollmann, Franz <br/><br/>
On measurement of toughness in timber  :  some preliminary investigations / 
Franz Kollmann and A. C. Sekhar 
 - Delhi :  Manager of Publications ,  1954 
 - 40 p. ;  25 cm. 
 - Services (new series) Indian Forest bulletin  no.167 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Forests and forestry--india
<br/><br/><label>Dewey Class. No.: </label>634.9